A container closure includes a generally planar body having a product side and a customer side. The container closure body defines a limited container opening and an actuation location. Further, the container body includes a force concentrating construction disposed adjacent the limited container opening.

A sheet metal lid has a rim portion removably secured and sealed to a container and the lid includes a vent button having a top wall portion surrounded by a side wall portion and an outwardly projecting flange portion. The flange portion of the button has a short arcuate score or shear line extending substantially into the sheet metal, and additional score lines extend into the flange portion at lesser depths to protect a coating on the inner surface of the lid. A resilient sealant material may be bonded to the inner surface of the vent button, and the opposing sheet metal portions of the score line form a small gap for releasing a vacuum or pressure from the container in response to a controlled downward pressure on the top wall portion of the vent button.

A tear-off lid with a curled edge of the removal opening is formed such that before the edge is curled, a plastics layer provided as a band of low thickness and preferably only 0.1 mm thickness is applied to the collar of the lid ring. In this way, a good seal of the cut edge of the tear-off lid is produced economically and with the possibility for production at a high rate.

A pull tab crown for a bottle or other container provides an opener secured to the top of the crown. The crown has an annular skirt with an annular edge. Score lines extend from the opener assembly to the skirt. One of the score lines is curvilinear and terminates at the annular edge. A second score line has a segment that extends from the opener assembly to an endpoint substantially spaced from the bottom annular edge of the skirt.

A container closure includes a generally planar body having a product side and a customer side. The container closure body defines a limited container opening and an actuation location. Further, the container body includes a force concentrating construction disposed adjacent the limited container opening.

A machine for manufacturing a closure that has: a workspace for receiving a blank, a rim punch arranged to engage a blank received within the workspace, a center punch arranged radially inside the rim punch, the center punch arranged to engage the blank received within the workspace to form a closure, and an ejection pin arranged to cause the center punch to move such that the closure disengages from the rim punch.

Equipment and related methods for manufacturing ring pull crowns are disclosed herein. In one embodiment, a method of manufacturing a ring pull crown may include forming a plurality of crown bodies from a first source material, and forming a plurality of pull ring and tab assemblies from a second source material. In addition, such a method may include forming a plurality of ring pull crowns by combining each crown body of the plurality of crown bodies with a corresponding pull ring and tab assembly from the plurality of pull ring and tab assemblies. Also, such method may also include forming a circumferential skirt that descends below a top of each ring pull crown, and removing the plurality of ring pull crowns from the first source material.

A can lid comprising: a main body comprising a laminate metal sheet, the laminate metal sheet comprising a metal sheet and a first resin film on a major surface of the metal sheet, the major surface having a score line delimiting an opening piece, the first resin film comprising a first resin layer comprising a dimer acid-copolymerized polyester resin and being amorphous; and a tab attached to the main body and adapted to cause a cleavage along the score line.

A retainer assembly includes a retaining member assembly and a motion assembly. The retaining member assembly is structured to selectively retain at least one shell in a transfer belt assembly belt recess. The retaining member assembly includes a retaining member. The motion assembly is structured to move the retaining member between a first position, wherein the retaining member is spaced from the transfer belt assembly transfer belt, and, a second position, wherein the retaining member is disposed a retaining distance from the transfer belt assembly transfer belt.

A container closure includes a generally planar body having a product side and a customer side. The container closure body defines a limited container opening and an actuation location. Further, the container body includes a force concentrating construction disposed adjacent the limited container opening.